JPH07177547A - Key telephone set - Google Patents

Abstract

PURPOSE:To realize a sophisticated function at a low cost by devising even an inexpensive terminal equipment without an external interface used to connect a display device capable of displaying characters or a personal computer to display caller identification information. CONSTITUTION:Numerals of '0'-'9' are assigned respectively to any of LEDs of an LED group 26 in addition to a substantial function. Furthermore, the identification information given via a main wire 3 (3-1-3-n) is received by an identification information detection circuit 14 (14-1-14-n) and a caller number included in the identification information is reported to an extension terminal equipment 2-1. When display of a caller number is designated through the depression of a '#' key, a terminal equipment control section 29 lights up sequentially LEDs corresponding to each digit figure of the caller number among the LEDs of the LED group 26.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a key telephone device having a function of displaying caller identification information such as a subscriber number of a caller at a terminal.

[0002]

2. Description of the Related Art In a key telephone system, when a caller's subscriber number (caller number) is given as an outside caller identification information at the time of an incoming call, this caller number is received by a main unit. After that, a notification is sent to the destination terminal and a display device (for example, L
It is to be displayed on a CD, etc.

By the way, a display device capable of displaying characters is expensive, and terminals equipped with such a display device are some advanced models. For example, many common terminals called standard telephones do not have a display capable of displaying characters, and even if the calling number is notified, it cannot be displayed.

Therefore, there is a terminal provided with an RS232C interface without a display capable of displaying characters. In this terminal, the calling number can be notified to the personal computer via the RS232C interface and displayed on the display of the personal computer.

However, even with such a terminal,
Since the RS232C interface is provided, it is expensive as compared with a general terminal. Moreover, a personal computer is required separately.

[0006]

As described above, in the conventional button telephone device, the caller must use an expensive terminal having an external interface for connecting a character display and a personal computer. There is a problem in that the identification information cannot be displayed, and the caller identification information cannot be notified to the user with an inexpensive general terminal.

The present invention has been made in consideration of such circumstances, and an object thereof is to provide an inexpensive terminal which does not have an external interface for connecting a display capable of displaying characters and a personal computer. It is also an object of the present invention to provide a key telephone device capable of displaying caller identification information and realizing high functionality at low cost.

[0008]

In order to achieve the above object, the present invention is provided with a plurality of input means such as function keys for assigning designated contents to each, and accepting designated input of corresponding contents, The display device is provided corresponding to each of the plurality of input units, and has a plurality of display units such as LEDs for displaying the state of the designated content assigned to the corresponding input units, and includes, for example, a local line. In a button telephone device to which predetermined caller identification information such as a caller number is given via an outside line when an incoming call is received via an outside line, at least a part of the plurality of display means is different from each other. Unit information (for example, "0" ~
(9) is assigned in advance, and identification information receiving means such as an identification information detection circuit for receiving the caller identification information and display of information corresponding to the caller identification information are designated. In response to this, each of the plurality of display means is controlled to display the information corresponding to the caller identification information received by the identification information receiving means in combination with the unit information, for example, a caller number. Display control means such as display control means.

[0009]

By taking such means, the caller identification information given via the outside line is received by the identification information receiving means. When the display of the information corresponding to the calling party identification information is designated, the information corresponding to the calling party identification information received by the identification information receiving means is in the state of the designated contents assigned to the input means. Is displayed by diverting a plurality of display means for displaying.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a functional block diagram showing a main configuration of a key telephone device according to this embodiment.

This key telephone system comprises a main unit 1 and m extension terminals 2 (2-1, 2-2 ..., 2-m) respectively connected thereto. The main device 1 includes a time switch 11, n external line interface circuits 12 (12-1, 12-2 ..., 12-n), and m internal line interface circuits 13 (13-1, 13-2 ..., 13-). m),
An n-number identification information detection circuit 14 (14-1, 14-2, ..., 14-n) and a main controller 15 are provided, and the time switch 11,
The external line interface circuit 12, the internal line interface circuit 13, and the identification information detection circuit 14 are connected to the main control unit 15 via the data highway 16.

The time switch 11 includes an external line interface circuit 12 and an internal line interface circuit 13 as a PC.
They are connected to each other via the M highway 17, and by exchanging the time slots on the PCM highway 17 under the control of the main control unit 15, the outside line interface circuit 12 and the extension line interface circuit 13 are arbitrarily exchanged and connected. .

The outside line interface circuit 12 includes a station line 3
(3-1, 3-2 ..., 3-n) are connected respectively. The external line interface circuit 12 converts a voice signal (analog) arriving via the station line 3 into a PCM signal, converts a PCM signal given via the time switch circuit 11 into a voice signal (analog), and connects to the station line. 3 state monitoring,
External line interface operations such as transmission of various signals to a network connected via the office line 3 are performed. The external line interface circuit 12 also exchanges control information relating to the external line interface operation with the main control unit 15.

Each extension terminal 2 is connected to the extension interface circuit 13. In the extension interface circuit 13, the voice signal (analog) output from the extension terminal 2 is converted into a PCM signal, the PCM signal given through the time switch circuit 11 is converted into a voice signal (analog), the extension terminal 2 Status monitoring and extension terminal 2
Extension interface operations, such as sending various signals to, are performed. In addition, the extension interface circuit 13
The control information relating to the extension interface operation is exchanged with the main control unit 15.

The identification information detection circuit 14 is connected to each office line 3. The identification information detection circuit 14 detects and receives the identification information given from the network through the station line 3, and gives the received identification information to the main control unit 15.

The main control section 15 includes, for example, a microcomputer as a main control circuit and controls each section to realize the exchange operation. FIG. 2 is a functional block diagram showing a specific configuration of the identification information detection circuit 14.

The identification information detecting circuit 14 is composed of a modem signal detecting section 41, a data detecting section 42, a CPU 43, an interface section 44, a serial / parallel converting section 45 and a tone detecting section 46.

By the way, this embodiment is connected to a network for providing a service called "CLASS" provided in the United States. This "CLASS"
In the above, the network transmits the predetermined identification information to the subscriber by superimposing it on the ringing signal. The ringing signal is a signal of a predetermined frequency as shown in FIG.
It is a signal that repeats ON for 1 second with FF in between.
The modem signal in which the identification information is modulated is superimposed on the FF for 3 seconds. The identification information includes date and time information and the subscriber number (caller number) of the calling party, and has the format shown in FIG. 3B, for example.

A station line 3 is connected to the modem signal detecting section 41, and a modem signal is detected from a signal arriving via the station line 3 and given to a data detecting section 42 and a serial / parallel converting section 43. .

The data detector 42 detects data such as identification information in the modem signal and outputs it to the internal bus 47. The data output from the data detection unit 42 to the internal bus 47 is output to the data highway 17 via the interface unit 45 under the control of the CPU 44.

The serial / parallel converter 43 converts the serial modem signal supplied from the modem signal detector 41 into a parallel signal and outputs it to the internal bus 47. The tone detecting section 46 is connected to the office line 3, detects a predetermined tone signal (for example, a tone signal of 2130 Hz and 2750 Hz) from a signal coming through the station line 3, and causes the data detecting section 42 to detect the tone signal. give.

On the other hand, the extension terminal 2-1 includes a call circuit 21, a handset 22, an input / output interface circuit 23, a dial key 24, a function key group 25, an LED group 26, and an LED.
A drive circuit 27, a memory 28, and a terminal control unit 29 are provided, and a call circuit 21, an input / output interface circuit 23, a dial key 24, a function key group 25, an LED drive circuit 27.
The memory 28 is connected to the terminal control unit 29 via the bus 30.

The call circuit 21 is connected to the handset 22 and the extension interface circuit 13-1 of the main unit 1, respectively, and the receiving speaker 2 of the handset 22 is responsive to the voice signal provided from the extension interface circuit 13-1.
2b is driven, and the voice signal output from the transmitting microphone 22b of the handset 22 is given to the extension interface circuit 13-1.

The input / output interface circuit 23 is connected to the extension interface circuit 13-1 and inputs / outputs data transmitted / received between the main unit 1 and the extension terminal 2-1.
The dial keys 24 are respectively "0" as shown in FIG.
It is composed of twelve keys to which numerical values up to "9" and "*" and "#" are assigned, and is for the user to input various information such as dial information to the terminal control unit 29.

The function key group 25 is composed of a plurality of function keys as shown in FIG. These function keys are assigned functions such as designation of the acquisition station line, and the user designates and inputs these functions to the terminal control unit 29.

The LED group 26 is composed of a plurality of LEDs provided corresponding to each function key of the function key group 25 as shown in FIG. 4, and the usage state of the function assigned to the corresponding function key. Is for displaying.
Further, respective numerical values of "0" to "9" are respectively assigned to predetermined 10 LEDs of the LED group 26, and corresponding numerical values are displayed in the vicinity as shown in FIG.

The LED drive circuit 27 drives each LED of the LED group 26 under the control of the terminal control unit 29. The memory 28 is for storing various information necessary for the terminal control unit 29 to perform various processes.

The terminal control unit 29 controls the respective units of the extension terminal 2-1 as a whole. The terminal control unit 29 has, for example, a microcomputer as a main control circuit, and in addition to the well-known general control means for extension terminals, it also performs a control for displaying the calling party number using the LED group 26. It has caller number display control means 29a.

The extension terminals 2-2 to 2-m are the extension terminals 2-
An element having the same configuration as that of 1 or a general element existing in the past is arbitrarily connected. Next, the operation of the key telephone apparatus configured as described above will be described focusing on the operation relating to the display of the calling party number at the extension terminal 2-1 when the call is received at the extension terminal 2-1.

First, the terminal control unit 29, when activated, presets the variable I to "1" (step a) and then waits for an incoming call to occur (step b). By the way, in the main unit 1, when an incoming call to the extension terminal 2-1 occurs, the extension terminal 2-1 is called or exchange-connected by a well-known procedure. At this time, in the main device 1, when the identification information is sent from the network, the identification information detection circuit 14 detects and receives the identification information and gives it to the main controller 15. Then, the main control unit 15 extracts the calling party number from the identification information given from the identification information detection circuit 14, and the extension interface circuit 13
Notify the extension terminal 2-1 via -1.

When an incoming call occurs in this manner while waiting for an incoming call as described above, the terminal control unit 29 subsequently determines whether or not the calling party number has been notified (step c).

Here, if the identification information is sent from the network as described above and the calling party number included therein is given through the extension interface circuit 13-1, this information is sent. It is taken in by the input / output interface circuit 23. In this case, the terminal control unit 29 stores the calling party number fetched by the input / output interface circuit 23 in the memory 28 (step d). If the identification information is not given from the network and the calling party number is not notified from the main device 1, the terminal control unit 29 repeats the processing from step a and waits for the next incoming call.

After storing the calling party number in the memory 28 in step d, the terminal control section 29 terminates the current incoming call or depresses the "#" key of the dial keys 24. Wait for (step e and step f). When the "#" key of the dial keys 24 is pressed, the terminal control unit 29 causes the memory 2
The LED drive circuit 27 is instructed to read out the I-digit number of the calling party number stored in 8 and turn on the LED corresponding to the I-digit number of the LEDs of the LED group 26. (Step g). That is, for example, when the calling number is "12-3456", the LED corresponding to "1" is turned on as shown in FIG. 5A in response to the first press of the "#" key. .

Subsequently, the terminal control section 29 judges whether or not the display of the last digit of the calling party number is completed (step h), and if the last digit of the calling party number is not displayed yet, Adds "1" to the variable I (step i), and then repeats the processing after step e. Therefore, in this state,
Each time the "#" key is pressed, the LEDs corresponding to the second and subsequent digits of the calling party number are sequentially turned on. That is, for example, when the calling number is "12-3456",
Each time the “#” key is pressed, FIG. 5B to FIG.
The LEDs that are turned on are sequentially changed as shown in (f).

When the display of the last digit of the calling party number is completed, the pressing of the "#" key is waited for again (step j). When the "#" key is pressed, the variable I is set to "1". After resetting (step k), the processes after step e are repeated to prepare for displaying the calling party number again. When the current incoming call is completed, the processing from step a onward is repeated to wait for the next incoming call.

When the calling party number is not displayed, each LED of the LED group 26 operates normally as a display corresponding to the function key. The display contents corresponding to the function keys are managed by the terminal control unit 29 using the memory 28, and the original display can be performed even after the calling party number is displayed. Further, the main control unit 15 and the terminal control unit 29 perform various controls including the control for transmission, in addition to the processing described above.

Thus, according to this embodiment, the LED group 26 is switched to the calling party number display mode in response to the depression of the "#" key during the incoming call, and the L corresponding to the function key is pressed.
The calling party number is displayed by diverting the ED. When the display of the calling party number is completed, the LED group 26 is returned to the normal display mode corresponding to the function keys by pressing the "#" key again. In this way, the extension terminal 2-1 does not have a display device capable of displaying characters, such as an LCD, and can be constructed at low cost, but can display the calling party number. . Therefore, by using many such extension terminals, an inexpensive and highly functional key telephone device can be realized.

The present invention is not limited to the above embodiment. For example, in the above-described embodiment, the LED provided corresponding to the function key is used for displaying the calling party number. However, for example, the LED is associated with the dial key 24 or another key and L
If display means such as an ED is provided, they can be used for displaying the calling party number.

Further, in the above embodiment, the LED is "0"-
The calling number is assigned by assigning a numerical value of "9", but numerical values other than "0" to "9" or alphabets are assigned to display information other than the calling number. Is also good.

In the above embodiment, the digit to be displayed is changed each time the "#" key is pressed.
The calling number may be displayed up to the last digit while automatically changing the displayed digit in response to the pressing of the "#" key. The key for accepting the display of the calling party number does not have to be the “#” key, other keys may be used, or a dedicated key for designating the display of the calling party number may be provided. You may do it.

Further, in the above embodiment, the button telephone device connected to the network for providing the service called "CLASS" is exemplified, but the network having the function of notifying the subscriber side of the caller identification information is used. If it is a key telephone device to be connected,
The present invention can be applied to any network. In addition, various modifications can be made without departing from the scope of the present invention.

[0042]

According to the present invention, designated contents are assigned to each of them, and a plurality of input means such as function keys for receiving the designated input of the corresponding contents and a plurality of input means are provided. Provided with a plurality of display means such as LEDs for displaying the state of the designated content assigned to the corresponding input means, and, for example, when an incoming call is made via an outside line such as an office line, In a button telephone device to which predetermined caller identification information such as a caller number is given via the outside line, different unit information (for example, "0" to "9") is provided on at least a part of the plurality of display means. "Each numerical value of") is assigned in advance and corresponds to the identification information receiving means such as an identification information detection circuit for receiving the calling party identification information, and the calling party identification information. When the display of the information is designated, each of the plurality of display units is controlled to display the information corresponding to the caller identification information received by the identification information receiving unit by combining the unit information. For example, since the display control means such as the caller number display control means is provided, the caller identification information can be displayed even in an inexpensive terminal that does not have an external interface for connecting a character display or a personal computer. The button telephone device can be displayed, and can realize high functionality at a low price.

[Brief description of drawings]

FIG. 1 is a functional block diagram showing a main configuration of a key telephone device according to an embodiment of the present invention.

FIG. 2 is a functional block diagram showing a specific configuration of an identification information detection circuit 14 in FIG.

FIG. 3 is a diagram schematically showing an example of a transmission format of a ringing signal given from the network at the time of an incoming call and identification information superimposed on the ringing signal.

FIG. 4 is a plan view showing an example of the appearance of an extension terminal 2-1 in FIG.

[Fig. 5] Extension terminal 2-1 when receiving an incoming call to the extension terminal 2-1
6 is a flowchart showing a processing procedure of the terminal control unit 29 for displaying the calling party number in FIG.

FIG. 6 is a diagram showing a transition of a light emitting state of an LED when displaying a calling number.

[Explanation of symbols]

 1 ... Main device 2 (2-1 to 2-m) ... Extension terminal 3 (3-1 to 3-n) ... Station line 11 ... Time switch 12 (12-1 to 12-n) ... External line interface circuit 13 ( 13-1 to 13-m) ... extension interface circuit 14 (14-1 to 14-n) ... identification information detection circuit 15 ... main control unit 21 ... communication circuit 22 ... handset 23 ... input / output interface circuit 24 ... dial key 25 ... Function key group 26 ... LED group 27 ... LED drive circuit 28 ... Memory 29 ... Terminal control section 29a ... Caller number display control means

Claims (1)

[Claims] 1. A plurality of input means for assigning designated contents to each of them, a plurality of input means for receiving designated inputs of corresponding contents, and a plurality of input means provided corresponding to each of the plurality of input means, and assigned to the corresponding input means. A button telephone device having a plurality of display means for displaying the state of the specified content, and given predetermined caller identification information when the incoming call is received through the outside line, While assigning different unit information to at least a part of the display means in advance, an identification information receiving means for receiving the caller identification information, and a display of information corresponding to the caller identification information are provided. According to the designation, the plurality of displays for displaying the information corresponding to the caller identification information received by the identification information receiving means in combination with the unit information. A button telephone device, comprising: display control means for controlling each of the means.